The U.S. govt has done much to prevent the growth of this industry. It would economically threaten the paper industry. Many products made of cotton could be replaced by hemp which doesn't require pesticides to grow. Congress is afraid that someone will grow the high producing stuff within a field of the rope, cloth, paper type. Guess what? The high producing stuff becomes inert when in contact with the other.

Well I had two JBL D-140s reconed with hemp. I was playing Dub Manh and the voice coils began to overheat. First thing I notice I no hear the drummer or the guitar player. They are laying in front of my cabinet and the smell is just sweeeeeet!
Then I couldn't see them but the audience thought we were using a fog machine which we weren't. The front row was basically in the same shape as me mates. Be well and I can't wait to play them again.